Apparatus for charging open-hearth furnaces, &amp;c.



J. SMITH. I APPARATUS FOR CHARGING OPEN HEARTH FUBNAGBS, 6m.

APPLICATION FILED JAN. 13,1912.

Patented June4, 1912.

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@mi/linmean z COLUMBIA PLANDGBAPH co WASHINGTON. D. C.

J. sMIrH. APPARATUS FOR GHABGING OPEN HEARTH I'URNAGBS, dw.

APPLICATION FILED JN.'13,1912. y 1 ,028,6'19,A Patented June 4, 191.2.

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COLUMBIA PLANOGRAPH Co.,wAsHxNa'roN, D. c.

lUNITED sTATEs PATENT oEEioE.

JAMES SMITH, OE EAEING, ENGLAND, ASSIGNOR TO lZBABCOCK & ,WILCOX COMPANY, OF BAYONNE, NEW JERSEY, A CORPORATION OF NEW JERSEY.Y

APPARATUS FOR CHARGING- OPEN-HEARTI-I FURNACES, 86o..

To all whom t may concern Be it known that I, JAMES SMITH, a subject of the King of Great Britain, residing at Ealing, in the county of Middlesex, England, have invented certain new and useful Improvements in Apparatus for Charging Open-Hearth Furnaces and'` the Like, ofl

ticularly in improved devices hereinafter particularly described for traversing the said carriage and for tilt-ing the charging arm.

In the accompanying drawings Figure 1 is a part elevation, part longitudinal vertical section of a charging machine of the kind referred to equipped with the improvements; Fig. 2 is a cross section on the line 2 2 Fig. 1, and Fig. 3 is aplan of the machine. Figs. 4 and 5 show details of a modification.

lReferring to the drawings, the charging apparatus comprises a main traveling-structure 1 made up of suitably braced I-beams or the like resting on wheels 2 adapted to be rotated in known manner, through the intermediary of suitable gearing 4-5, from an electric motor 6, whereby the said structure may be traversed along stationary rails 7 disposed parallel to the furnace front.

Mounted to run on the structure 1 in a direction at right angles to the line of movement of the structure, that is, toward or away from the furnace opening, is a carriage 8 to which are connected at 9 and 10 the ends of sprocket chains 11, said chains being led around sprocket wheels 12 and 13. The sprocket Wheels`12 are fast on a shaft 14 mounted in bearing on the main structure 1, said shaft being rotated through gearing 15 driven from an electric motor' 16, said gearing and motor being located to one side of and at the rear of the structure 1, so that the component parts thereof are readily accessible and out of the dangerous Specification of Letters Patent.

Patented June 4, 1912.

Application led January 13, 1912. Serial No. 671,069. n

heat from the furnace. It will be understood that the motor 16 and gearing 15 will participate in the movement of the structure 1 and be stationary relatively to the carriage 8, the gearing, chain connections, etc., acting positively to traverse the carriage.

The charging arm 17 is supported within a Vhollow bearing 18 having journals tted '6 s 5 in brackets 19 mounted on a turn table 20 which is mounted on the carriage 8. The turn table 20 rests upon bearings 21 and is adapted to turn about a central bearing 22. On this turn table is mounted an electric motor V23 which drives a worm gearing 24 and a gear 25 (see Fig. 3) the latter meshing with a fixed internal gear 26 on the carrlage.

In addition to the rotation of the charglng arm 17, through the rotation of the turn table, the said arm has an independent movementI of rotation on its longitudinal axis through the following mechanism. The rearward extension of the bearing 18- supports a platform 27 on which is supported an electric motor 28 driving a suitabletrain of gearing, the worm wheel 29 of which is I fast o n theshaft of the charging arm. The charging arm is also capable of a tilting movement on a transverse `horizontal axis.

As vabove stated the bearing 18 has journals fitted vin brackets 19 and said bearing is tilted by means of a crank 30 secured to a shaft 31 located beneath bearing 18. 'Io said crank are connected arms 32 provided with rollers 33 engaging guides on the rear portion of the bearing 18. The crank shaft is driven through gearing 34 from an electric motor 35, the gearing being kept as low as possible relatively to the charging arm at one side thereof so as to afford an uninterrupted view of the charging arm andthe load carried thereby when the furnace-is being charged. It will be understood that the devices for tilting the charging arm operate on the same from below. As an alternative means for tilting the charging arm, the crank 30 may be connected to the rear end of the bearing 18 by means of a connecting rod or rods 36 engaging an eccentrically turned portion or portions 37 on a circularly adjustable pin 38 fitted in the bearing 18, (see Figs. 4 and 5) the adjustment of said pin being equivalent to adjustment of the charging arm relatively to the crank, whereby the citent of imoveine'nt` ofV said arm may be varied if desired. The pin 38 may be held in any desired position by nlans of a set screw or setscrews 39 or the 1 e. A v. i .In

It will be observed that the arrangement ofl -apparatus above described 4insures greater compactness of the gears for operating the charging arm. Y

What I claim and desire to secure by LettersPatent of the United States, is:

l. In anappaiatus of the character described, the combination of a main traveling structure, a carriage' mounted thereon, a charging arm supported on said carriage,

andmeans for traversing the carriage onV said structure comprising a motor located at one'sideof said structure adjacent the rear thereof, and operative connections between lsaid motor andcarriage, said vmotor and aryrelatively to the carriage.

In an apparatus of the character described,` the combination of a main traveling structure, aV carriage mounted thereon, a

charging arm supported on said carriage, means for traversing the carriage on said structure, and means for tilting the charging arm comprising a crank located beneath the charging arm, operative connections interposed between said crank and the charging arm, and means for driving said crank.

4. In an apparatus of the character described, the combination of a main traveling structure, a carriage mounted thereon, a

charging armsupported on said carriage,`

means for traversing the carriage on said struct-ure, and means for tilting the charg-V ing arm comprising a crank located beneath the charging arIn,'and arms provided with rollers connected to said crank and engaging guides on the rear of the bearing of the charging arm, and means for driving said crank. i' i 5. In an apparatus of the character de? scribed, the combination of a main traveling structure, a carriage mounted thereon, a charging arm supported on said carriage, means for traversing the carriage on said structure,'means' for tilting the charging arm Ycomprising a crank located beneath theY charging arm, operative connections inter-Y posed between said crank andthe charging arm, means for adjustably attaching said connections to the charging arin,'and means for driving said crank.-

In testimony whereof I have hereunto signed my name in'the scribing witnesses.

` JAMES SMITH. VVitnessesi ROBERT SHAW FOX, HENRY PELHAM SMITH.

Copies of this patent may be obtained for five cents each, by addressing the Commissionerot` Patents, Washington, 1). C. i

presence of two sub- 

